ADwin-Pro II
Hardware, manual Dec. 2018
175
Pro II: Extension and Interface Modules
Pro II-RS422-4 Rev. E
ADwin
5.8.7 Pro II-RS422-4 Rev. E
The module Pro II-RS422-4 Rev. E has 4 interfaces of the type RS-422.
The module is equipped with the "Quad Universal Asynchronous Recei-
ver/Transmitter" (UART) controller, type TL16C754 from Texas Intruments
®
.
Functionality and programming of the interfaces are based on this controller.
Each module is equipped with a freely programmable
TiCo
processor, which
has full access to the RS422 interfaces. Find more information about use and
programming of the
TiCo
processor in the
TiCoBasic
manual.
If you store a
TiCoBasic
program in the
TiCo
bootloader, the program is auto-
matically loaded into the
TiCo
processor and started on power-up. Thus, the
module can run on its own and independently from the CPU module of the
ADwin-Pro II
system.
The description is divided into the following paragraphs:
– Hardware
TiCo processor
The module provides the freely programmable
TiCo
processor with 28KiB pro-
gram memory, and 28KiB data memory. The
TiCo
processor is programmed
with
TiCoBasic
.
The
TiCo
processor has access to the RS422 controller. Find more information
about use and programming of the
TiCo
processor in the
TiCoBasic
manual.
If you store a
TiCoBasic
program in the
TiCo
bootloader, the program is auto-
matically loaded into the
TiCo
processor and started on power-up. Thus, the
module can run on its own and independently from the CPU module of the
ADwin-Pro II
system.
Hardware
Fig. 150 – Pro II-RS422-4 Rev. E: Front panel and pin assignment
Interface parameters
Initialize the interfaces for RS422 operation first with
P2_RS_Init
.
Each interface has an input and an output FIFO with a length of 64 bytes each.
The settings of the interface parameters are made separately for each chan-
RS422-4
SERIAL PORT
n.c.
GND (1)
GND (2)
GND (3)
GND (4)
TX+ (1)
TX– (1)
RX– (1)
RX+ (1)
TX+ (2)
TX– (2)
RX– (2)
RX+ (2)
TX+ (3)
TX– (3)
RX– (3)
RX+ (3)
TX+ (4)
TX– (4)
RX–(4)
RX+ (4)
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18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
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